Extract the year from the 'order_date' column in the 'orders' table and count the number of orders for each year.
CREATE TABLE orders (order_id INTEGER, order_date TIMESTAMP); INSERT INTO orders (order_id, order_date) VALUES (1, '2023-10-15 09:35:21'), (2, '2022-09-14 08:34:20'), (3, '2023-08-13 07:33:19');
```sql
SELECT strftime('%Y', order_date) AS year, COUNT(*) AS order_count 
FROM orders 
GROUP BY year;
```
```sql
SELECT strftime('%Y', order_date) AS year, COUNT(*) AS order_count 
FROM orders 
GROUP BY year;
```